A man is facing east, he turns 90° left, walks 5 m, turns 90° right, walks 5 m. What is his position relative to start? MCQ with Answer and Explanation
Explanation:
North (0°) -> 180° CW -> South (180°) -> 90° ACW -> East? Wait: South 180°, 90° ACW -> East (90°)? Actually 180° - 90° = 90°, which is East. But initial was north. Let's compute: Start: North (0°). +180° CW = 180° (South). Then -90° ACW = 90° (East). So East. Wait I said West earlier. I'll correct. The answer is East. Let me recalc: 0° + 180° = 180° (South). Then anticlockwise 90° subtract: 180° - 90° = 90° (East). So East. So correct answer is East. I'll set option A as East.
Richa drives 8 km south, turns left and drives 4 km. She then turns left and drives for 11km. At what distance is he from the departure point, if there is a direct route between the two points?
Explanation:
Drives 8 km South, turns left (East) 4 km, turns left (North) 11 km. Net vertical = 11 - 8 = 3 km North. Net horizontal = 4 km East. Distance = √(3² + 4²) = 5 km.
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